A new tool being used at Houston Methodist taps into artificial intelligence breast cancer diagnosis. Photo courtesy of Houston Methodist

In the medical field, billions of dollars are wasted each year — about $935 billion, but who's counting? According to a paper published by the JAMA Network, an estimated $75.7 billion to $101.2 billion is wasted through overtreatment. Of the many procedures that can lead to wasted resources, breast cancer biopsies are a major source of overtreatment. Houston Methodist Hospital is using artificial intelligence to create a more efficient and accurate Breast Cancer Risk Calculator, called iBrisk.

Breast cancer is something that plagues the lives of many women, and some men. According to the National Breast Cancer Foundation, one in eight women will be diagnosed with breast cancer in their lifetime.

Women are advised to start having annual mammograms to screen for breast cancer starting at age 40 to try to catch cancer in its earliest stages. With mammograms becoming a standard procedure, the process inevitably leads to more biopsies.

While more biopsies sound like the obvious course of action, Houston Methodist Hospital shares that out of 10,000 women biopsied, less than two will be positive while using the national standard. The result of a negative biopsy? Wasted time, resources, and money, as well as undue worry for the patient.

"It's not just wasteful. . .when you do an unnecessary procedure, you're potentially harming the patient," says Stephen Wong, Ph.D. After a negative biopsy, Dr. Wong explains that patients often begin to show emotional responses like high anxiety and low self-esteem. They often speculate the biopsies are wrong, and that they've had a missed cancer diagnosis by their medical provider.

Dr. Wong estimates that more than 700,000 patients have unnecessary biopsies in the breast cancer category alone.

Spearheading the iBrisk tool, Dr. Wong has found a way to utilize a smarter model than the current system for detecting breast cancer risk.

Hospitals across the country currently use the Breast Imaging Reporting and Database System score (BI-RADS), a system created by the American College of Radiology to determine breast cancer risk and biopsy decision-making.

To expand on BI-RADS data, Dr. Wong used multiple patient data points and AI technology to create the improved system. The iBRISK integrates natural language processing, medical image analysis, and deep learning on multi-modal BI-RADS patient data to make one of three recommendations: biopsy not recommended, consider biopsy, or biopsy recommended.

"While using AI, we try to simulate how the physician thinks," explains Dr. Wong. "The physician looks at different data: imaging, patient clinical data, demographic, history and other social factors. You don't rely on one particular thing."

To create iBrisk, Dr. Wong used 12 to 13 years of BI-RAD data at Houston Methodist Hospital to train the AI using deep learning.

He estimates that more than 80 percent of technical information is in the free text format, meaning unstructured data, in the United States.

"We applied an AI technique called natural language processing, which is using the computer to read the text automatically for us," explains Dr. Wong.

This data extraction tool was also used with imaging of mammogram ultrasounds by applying image analysis computer vision.

iBrisk also deploys deep learning, a machine learning tactic where artificial neural networks, inspired by the human brain, learn from large amounts of data. They determined approximately 100 parameters to analyze, including age, sex, socio-economic data, medical history, and insurance plans. After putting the data points into a deep learning method, the AI reduced the data points to the 20 risk indicators.

Houston Methodist Hospital used an estimated 11,000 cases for training, and then used 2,200 of its own data to test iBrisk. They have even been able to create unbiased independent validation by working with other hospitals like MD Anderson, testing their patients using iBrisk and confirming the results.

The potential of iBrisk to cut costs and contribute to less overtreatment has garnered support with other hospitals around the country. The breast cancer risk calculator is a collaboration with Dr. Jenny Chang of HMCC and breast oncologists at MD Anderson, UT San Antonio, and University of Utah Cancer Center.

While implicit racial bias has become a more prominent issue in the United States, Houston Methodist's iBrisk grants a neutral, unbiased lens. AI isn't immune to racial bias; in fact, computer scientist and founder of the Algorithmic Justice League, Joy Buolamwini, uncovered the large gender and racial biases of AI systems sold by IBM, Amazon and Microsoft in a 2019 article for Time.

With AI's history of racial bias in mind, Dr. Wong set out to create an impartial, fair system. "Our AI data is not sensitive to race. . .it's unbiased," he explains.

Houston Methodist Hospital plans to expand the iBrisk model to other forms of cancer in the future, including its next venture into thyroid and incidental lung nodule screenings.

The AI allows patients to save the stress of getting a biopsy.

"We are very careful to put any drugs or any procedure into clinical workflow until we are very sure you really have to pick this [outcome]," explains Dr. Wong. Using advanced risk detectors like iBrisk allows medical practitioners to make more thorough, informed decisions for patients looking into biopsies.

The categories are broken into low, moderate and high-risk groups. The low-risk groups have seen a 99.8 percent accuracy in results, missing only two cases out of a sample of 1,228. Patients that have fallen into the high-risk groups (leading patients to get a biopsy) have seen an 85.9 percent accuracy, compared to radiology, which is 25 percent accurate according to Dr. Wong.

Dr. Wong notes that patients that fall in the moderate section of the risk assessment can then have a dialogue with their physician to determine if they want to move forward with the biopsy. In the moderate category, there is a 93.4 percent accuracy.

If implemented, iBrisk would be able to reduce 75 percent of unnecessary biopsies, estimates Dr. Wong.

Currently, Houston Methodist Hospital is using AI technology outside of oncology, with the recent release of a tool that can diagnose strokes using a smartphone, announced in Science Daily. The tool, which can diagnose abnormalities in a patient's speech and facial muscular movements, was made in collaboration with Dr. Jay Volpi of Eddy Scullock Stroke Center at Houston Methodist Hospital.

"We are answering bigger questions," explains Dr. Wong, who looks forward to continuing to expand AI capabilities and risk calculators at Houston Methodist Hospital.

In the future, Dr. Wong looks forward to doing a multicenter trial to bring this technology outside of Texas.

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7 can't miss Houston business and innovation events for July

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Editor's note: While many Houstonians are flocking to vacation destinations, there are still plenty of opportunities to network and learn at tech and business events for those sticking close to home this month. From an inaugural biotech summit to the 12th edition of a local pitch showcase, here are the Houston business and innovation events you can't miss in July and how to register. Please note: this article might be updated to add more events.

July 10 - Out in Tech Mixer 

Out in Tech Houston provides an inclusive networking space for LGBTQ+ people and allies working in tech. Check out this relaxed, social-mixer event, hosted on the second Thursday of every month.

This event is Thursday, July 10, from 7 to 8:30 p.m. at Second Draught. Register here.

July 14 – Latinas in Tech Coworking Day 

Connect with fellow Latinas in the industry at Sesh Coworking. Network or work alongside peers, board members and community leaders in a shared office environment.

This event is Monday, July 14, from 9-11:30 a.m. at Sesh Coworking. Find more information here.

July 17 – UTMB Innovation VentureX Summit

Attend the inaugural UTMB Innovation VentureX Summit, where innovators, entrepreneurs, researchers and investors will dive into the future of biotech. Expect panel discussions, fireside chats, a technology showcase and networking opportunities.

This event is Thursday, July 17, from 7:30 a.m.-4 p.m. at The University of Texas Medical Branch at Galveston. Find more information here.

July 17 – Open Project Night 

Collaborate on solutions for some of Houston’s most pressing issues at this month’s Open Project Night at Impact Hub Houston. Hear from guest speakers and listen to open mic pitches. July’s theme is Decent Work & Economic Growth.

This event is Thursday, July 17, from 5:30-7:30 p.m at Impact Hub Houston. Register here.

July 24 – NASA Tech Talks

Every fourth Thursday of the month, NASA experts, including longtime engineer Montgomery Goforth, present on technology development challenges NASA’s Johnson Space Center and the larger aerospace community are facing and how they can be leveraged by Houston’s innovation community. Stick around after for drinks and networking at Second Draught.

This event is Thursday, July 24, from 6-7 p.m. at the Ion. Register here.

July 30 – Ion Bike Club

Join Bike Houston at the Ion for a 45-minute guided cruise through the Ion District and Midtown. Afterward, enjoy a complimentary beer and network with like-minded riders at Second Draught.

This event is Wednesday, July 30, from 5:30-7:30 p.m. at the Ion. Register here.

July 31 – Bayou Startup Showcase

Hear pitches from startups and small businesses from Rice University’s OwlSpark and the University of Houston’s RED Labs accelerators at the 12th annual Bayou Startup Showcase. Read more about this year’s teams here.

This event is Thursday, July 31, from 3:30-7 p.m. at the Ion. Register here.

Houston researchers: Here's what it takes to spot a great new idea

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Having a “promotion focus” really does create a mental lens through which new ideas are more visible.

Key findings:

  • New ideas can be crucially important to businesses, driving innovation and preventing stagnation.
  • Recognizing those ideas, though, isn’t always easy.
  • Nurturing what is known as “promotion focus” can help managers spot fresh ideas.

Whenever the late surgeon Michael DeBakey opened a human chest, he drew on a lifetime of resources: the conviction that heart surgery could and should be vastly improved, the skill to venture beyond medicine’s known horizons and the vision to recognize new ideas in everyone around him, no matter how little formal training they had.

Appreciating new ideas is the heartbeat of business as well as medicine. But innovation is surprisingly hard to recognize. In a pioneering 2017 article, Rice Business Professor Jing Zhou and her colleagues published their findings on the first-ever study of the traits and environments that allow leaders to recognize new ideas.

Recent decades have produced a surge of research looking at how and when employees generate fresh ideas. But almost nothing has been written on another crucial part of workplace creativity: a leader’s ability to appreciate new thinking when she sees it.

Novelty, after all, is what drives company differentiation and competitiveness. Work that springs from new concepts sparks more investigation than work based on worn, already established thought. Companies invest millions to recruit and pay star creatives.

Yet not every leader can spot a fresh idea, and not every workplace brings out that kind of discernment. In four separate studies, Zhou and her coauthors examined exactly what it takes to see a glittering new idea wherever it appears. Their work sets the stage for an entirely new field of future research.

First, though, the team had to define their key terms. “Novelty recognition” is the ability to spot a new idea when someone else presents it. “Promotion focus,” previous research has shown, is a comfort level with new experiences that evokes feelings of adventure and excitement. “Prevention focus” is the opposite trait: the tendency to associate new ideas with danger, and respond to them with caution.

But does having “promotion focus” as opposed to “prevention focus” color the ability to see novelty? To find out, Zhou’s team came up with an ingenious test, artificially inducing these two perspectives through a series of exercises. First, they told 92 undergraduate participants that they would be asked to perform a set of unrelated tasks. Then the subjects guided a fictional mouse through two pencil and paper maze exercises.

While one exercise showed a piece of cheese awaiting the mouse at the end of the maze (the promise of a reward), the other maze depicted a menacing owl nearby (motivation to flee).

Once the participants had traced their way through the mazes with pencils, they were asked to rate the novelty of 33 pictures — nine drawings of space aliens and 24 unrelated images. The students who were prepped to feel an adventurous promotion focus by seeking a reward were much better at spotting the new or different details among these images than the students who’d been cued to have a prevention focus by fleeing a threat.

The conclusion: a promotion focus really does create a mental lens through which new ideas are more visible.

Zhou’s team followed this study with three additional studies, including one that surveyed 44 human resource managers from a variety of companies. For this study, independent coders rated the mission statements of each firm, assessing their cultures as “innovative” or “not innovative.” The HR managers then evaluated a set of written practices — three that had been in use for years, and three new ones that relied on recent technology. The managers from the innovative companies were much better at rating the new HR practices for novelty and creativity. To recognize novelty, in other words, both interior and external environments make a difference.

The implications of the research are groundbreaking. The first ever done on this subject, it opens up a completely new research field with profound questions. Can promotion focus be created? How much of this trait is genetic, and how much based on natural temperament, culture, environment and life experience? Should promotion focus be cultivated in education? If so, what would be the impact? After all, there are important uses for prevention focus, such as corporate security and compliance. Meanwhile, how can workplaces be organized to bring out the best in both kinds of focus?

Leaders eager to put Zhou’s findings to use right away, meanwhile, might look to the real-world model of Michael DeBakey. Practice viewing new ideas as adventures, seek workplaces that actively push innovation and, above all, cultivate the view that every coworker, high or low, is a potential source of glittering new ideas.

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This article originally appeared on Rice Business Wisdom.

Jing Zhou is the Mary Gibbs Jones Professor of Management and Psychology in Organizational Behavior at the Jones Graduate School of Business of Rice University. Zhou, J., Wang, X., Song, J., & Wu, J. (2017). "Is it new? Personal and contextual influences on perceptions of novelty and creativity." Journal of Applied Psychology, 102(2): 180-202.